Transcript “INTERNET TWO – Is It The Future of GDLN?“ Dr. Vili

Internet2 – Spring Meeting
“INTERNET TWO – Is It The Future of GDLN?“
Dr. Vili Brajovic
Global Communications Manager
HIGH SPEED GLOBAL CONNECTIVITY:
BRIDGING DISTANCE AND TIME
• High-speed, reliable network of regional satellites and fiber
• A network of 3 satellites serves the Bank’s offices in Africa, Asia, Europe, Latin
America and the Caribbean, and the Middle East
• Voice, data, video, fax, Internet and Intranet access to 114 Bank Offices and 24
Distance Learning Centers
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24 GDLN CENTERS CONNECTED TO THE BANK’S NETWORK
•
•
•
•
•
•
•
Managing public expenditure
Judicial reform
E-commerce, e-government
Hospital management
Indigenous profiles
Municipal management
Intellectual property rights
• Agricultural technology and productivity
• Child protection
• Citizen participation in national policy
dialogue
• Anti-corruption and transparency
• Disaster management
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BANK’S GLOBAL NETWORK VIDEOCONFERENCING GROWTH
NUMBER OF VC SESSIONS PER YEAR
25000
20000
20000
15000
Offering
Demand
10000
7500
7800
5500
5000
3600
1500
0
1998
1999
2000
2001
2002
2003
3
BANK’S GLOBAL NETWORK BANDWIDTH GROWTH
SATELLITE CAPACITY VERSUS DEMAND
160
140
136
Satellite Bandwidth (Mhz)
120
100
Capacity
Demand
80
72
62
60
52
40
20
35
18
0
1998
1999
2000
2001
2002
2003
FY
4
BANK’S GLOBAL NETWORK INDORMATION CAPACITY GROWTH
INFORMATION CAPACITY PER FIELD OFFICE
900
800
768
Link Speed (KBPS)
700
600
500
400
384
300
256
200
100
384
192
64
192
192
64
0
1995
1996
1997
1998
1999
2000
2001
2002
2003
FISCAL YEAR
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BANK’S GLOBAL NETWORK UNIT COST
UNIT COST OVER THE BANK’S NETWORK
$160
$140
$141
$120
KBPS
$100
$80
$60
$44
$40
$44
$44
$35
$26
$20
$26
$12
$0
1996
1997
1998
1999
2000
2001
2002
2003
FISCAL YEAR
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GDLN GLOBAL NETWORK SERVICE REQUIREMENTS
• High-level service quality (99.8% availability)
• Low monthly operational costs (<$4k/month)
• Local presence for operation and maintenance
(<24h repair time)
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INTERNET ONE VERSUS INTERNET TWO
INTERNET TWO
IPv6
INTERNET ONE
IPv4
•
Designed For Multimedia Applications
(Voice, Video, Data)
•
128bit IP Address (cca 340 trillion
trillion trillion addresses)
Security Solutions Application Based
•
Built-in Security Solution
•
Quality-of-Service (QoS) Only
Implemented on Dedicated Routes
•
Built-in Quality-of-Service Network
Wide
•
Existing
•
Slowly Emerging
•
Originaly Designed For Data Only
•
32bit IP Addresses (cca 4 billion
addresses)
•
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CURRENT INTERNET TWO IMPLEMENTATIONS
•
Private Corporate Networks
•
Limited Commercial Offerings On Dedicated Routes (In USA Sprint
Provides Limited Service Beween Some Cities)
•
In Europe Some Universities Have implemented Internet Two at
Their Campuses
•
The World Bank Has Implemented Internet Two Over It’s Global
Network
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GDLN/BANK’S GLOBAL NETWORK STRUCTURE
PRIOR TO SEPTEMBER 2002
HEADQUARTERS
FIBER OPTIC LINE (DS3)
ORION 3 Satellite
AUSTRALIA
TELEPORT
342 Degrees INTELSAT Satellite
(GLOBAL BEAM)
64 Degrees INTELSAT Satellite
(Hemi Beam)
AFRICA, LATIN AMERICA AND MIDDLE EAST REGIONS
EASTERN EUROPE REGION
ASIA REGIONS
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GDLN/BANK’S GLOBAL NETWORK STRUCTURE
AFTER SEPTEMBER 2002
HEADQUARTERS
FIBER OPTIC LINE (2xDS3)
ORION 3 Satellite
GERMAN
TELEPORT
342 Degrees INTELSAT Satellite
64 Degrees INTELSAT Satellite
(HEMI BEAMS)
(Hemi Beam)
AFRICA, LATIN AMERICA AND MIDDLE EAST REGIONS
EASTERN EUROPE REGION
ASIA REGIONS
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BENEFITS FROM TELEPORT RELOCATION
• Reduced overall latency for 300msec
• Reduced fiber backbone costs
• Better prime-time working hours overlap
• Reduced satellite bandwidth costs
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GDLN/BANK’S GLOBAL NETWORK EVOLUTION STRATEGY
PAMA
IP Over Asymmetrical SCPC
DAMA
(Dedicated Links)
(Virtual DAMA Links)
(Virtual DAMA Voice, Video and Data IP Channels)
DLC
FO
FO
FO
FO
FO
FO
FO
FO
ISDN
HEADQUARTERS
HEADQUARTERS
HEADQUARTERS
FO
FO
FO
• INTELSAT’S DAMA
• NORTEL-DASA TDM/TDMA/FR
DLC
INTERNET
DLC
GOVERNMANT
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IP SERVICES WITH GUARANTEED QOS
• QOS implemented on fragmented high utilized links
supporting 768kbps
• QOS provides bandwidth and jitter guaranties
• QOS is based on end-to-end “diffserv” model
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QOS IMPLEMENTATION: CISCO LLQ
Voice
Class.
&
Mark
Police
PQ
LLQ
Video
CBWFQ
Data
WFQ
PQ - Priority Queue
WFQ - Weighted Fair Queue
CBWFQ - Class Based Weighted Fair Queue
LLQ – Low Latency Queue
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IP VOICE (VoIP)
Toll bypass approach:
• Keep existing telephones and PBXs
• Use VoIP to provide connectivity between the PBXs
VoIP based on G.729 codec:
• 8kbit/s CS-ACELP codex
• Excellent voice quality
• MOS 3.92 (compare to MOS 4.1 for G.711/pcm)
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VOICE HEADER COMPRESSION
• VoIP is based on 8Kbps algorithm, which with overhead requires
26.4Kbps IP channel (40 bytes IP/UDP/RTP header)
• When RTP header compression (RFC2508) is used, for the same
algorithm only 11.2Kbps IP channel is needed
(40 bytes of IP/UDP/RTP reduced to 2–4 bytes)
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IP VIDEO
• Room based videoconferencing systems
• H.323 based videoconferencing
• 256Kbit/s per call
• G.711 for audio (64Kbits/s)
• H.261 for video (~180 Kbit/s)
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ASYMETRICAL SCPC SATELLITE CHANNELS
•
10 SCPC 768Kbps satellite channels combined into A single subgroup
•
Each sub-group is served by a single 8Mbps outgoing channel
and eight 768Kbps return channels
•
Asymmetrical solution provides an excellent bandwidth utilization
•
One single 256Kbps outgoing video stream is used to feed all
eight nodes during multi-point video session
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IP MIGRATION BENEFITS
• Improved quality of all services
• Single communications pipe for voice,data and video
• Low communications equipment complexity (only router)
• Low operation and management costs
• Easy integration with local area networks (desk-top video)
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IP MIGRATION BENEFITS(continued)
• Automated dynamic service interchange
• Automated videoconference scheduling
• Full compatibility with Internet
• Simple re-engineering for future growth
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Gartner Measurement
BENCHMARKING THE BANK’S GLOBAL NETWORK WITH OTHER
COOPERATE PRIVATE NETWORKS
Traffic Costs for Wide Area Networks
$ 600
Dollars per Gbps
$ 500
$ 400
$ 300
$ 200
$ 100
$0
WB
SGE
TN7
88T
Peer
KIU
E7X
World Bank
Management Presentation
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